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EUVD-2026-23943

🗓️ 24 Apr 2026 15:59:17Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu

Cryptographic downgrade in the Python Amazon Encryption SDK caching lets a local attacker bypass key commitment, causing multiple plaintexts; upgrade to 3.3.1 or 4.0.5+.

Related
Affected
Refs
[
  {
    "enisaIdVendor": [
      {
        "id": "2b9a802b-41ee-34d0-9aff-9096e13c4e17",
        "vendor": {
          "name": "aws"
        }
      },
      {
        "id": "8d9ce2e2-d845-3026-abf7-5d7d2255d9dd",
        "vendor": {
          "name": "aws"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "a9e495ea-107f-3844-937f-919573dd70d6",
        "product": {
          "name": "AWS Encryption SDK for Python"
        },
        "product_version": "3 ≤3.3.0"
      },
      {
        "id": "b4a419cf-9b91-3644-a7e3-9a2008542a59",
        "product": {
          "name": "AWS Encryption SDK for Python"
        },
        "product_version": "4 ≤4.0.4"
      },
      {
        "id": "fbc46d71-6a32-3336-a546-1ba1bdefd51b",
        "product": {
          "name": "AWS Encryption SDK for Python"
        },
        "product_version": "2 ≤2.5.1"
      }
    ]
  }
]

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24 Apr 2026 15:59Current
5.1Medium risk
Vulners AI Score5.1
CVSS 45.7
CVSS 3.14.7
EPSS0.00096
SSVC
0